What do you guys think of putting a pistol grip stock on pump shotguns (Moss 500 in my case)? I don't mean for field use just my if SHTF-personal defense 18" barreled gun. Thanks in advance for any ideas.[^] [V]

If you are talking about a full length stock with a pistol grip then I say go for it. If you are talking about just a pistol grip only then I say spend more money on a good semi-auto pistol, night sights, range time and ammo.

I own a Mossberg 500 with a pistol grip. The gun looks cool but it hurts to shoot it! My hand was swolen and hurt for 2 days after shooting about 20 rounds. I now attempt to absorb the recoil with my front hand when I shoot.
My .02 cents...

Man with hand in pocket is not always playing with change. -- Confucius ( 551 - 479 BC )

Yeah I would go along with USNJoe, and get the pistol grip with the full stock. That what I have and it works well. Get the one piece model and not the "convertable" one. They tend to flex and twist under fire.

A mossberg 500 in 20ga is quite comfortable with a pistol grip, unlike the 12ga, which is a bear. having a pistol grip on the fore stock makes it a little better. the 20ga option may be a good idea if you want this for indoors (or blasting snakes...)

I have a pistol grip choate stock on my 18 inch barrel 870 express. I can reload special or normal ammo from the side saddle while still keeping the gun on target and have the option of butt-stroking an opponent if I don't need to use lethal force.....

I am of the OPINION that pistol-grips should be reserved for semi-auto shotguns, only.
It comes in handy when pulling the weapon back on target for a second shot. If you have to pump, this becomes moot.
IMHO